Zamora, Eduardo
Current rating: 1499
Record: 2-2-1
| Grand Prix Costa Rica 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 15 | Salazar, Ivan Andres (1500) | Won 2-0 | +181518 |
| 3sealed | 88 | Calderon, Aaron (1518) | Won 2-1 | +181536 |
| 4sealed | 103 | Loria Rojas, Andres (1482) | Lost 0-2 | -191517 |
| 5sealed | 88 | Morales, Humberto (1482) | Draw 1-1 | -11516 |
| 6sealed | 104 | Morera, Rodrigo (1524) | Lost 0-2 | -171499 |
| average opponent: 1501record: 2-2-1 | new rating: 1499 | |||